Classification
Product TypeIngredient
Product FormRefined resin (bleached, granular/flakes)
Industry PositionFood Additive (Glazing Agent)
Market
Bleached shellac (INS 904; EU E904) is a specialty, insect-derived resin traded globally as a glazing/coating agent for selected food categories and supplement-like formats. Supply is closely tied to lac cultivation and downstream refining/bleaching capacity, with India a long-standing leader in production and export and Thailand also hosting industrial producers. Global trade is shaped by buyer adherence to Codex/JECFA specifications and by jurisdiction-specific additive permissions and specifications (notably the EU’s detailed E904 requirements). Regulatory and quality-compliance expectations (e.g., impurities and toxic elements, wax content and adulteration checks) are central determinants of market access and buyer qualification.
Major Producing Countries- IndiaIndia hosts national R&D capacity focused on lac production/processing and has a dedicated export promotion council for shellac and lac-based products.
- ThailandThailand has established industrial processing capacity for seedlac and bleached/flake shellac, including food-grade manufacturing.
Major Exporting Countries- IndiaShellac and lac-based products are within the remit of India’s SHEFEXIL export promotion council.
- ThailandThailand is an established origin for processed lac products including bleached shellac produced by industrial manufacturers.
Major Importing Countries- United StatesListed by India’s SHEFEXIL as an export destination for Indian lac/lac-based products.
- GermanyListed by India’s SHEFEXIL as an export destination for Indian lac/lac-based products.
- IndonesiaListed by India’s SHEFEXIL as an export destination for Indian lac/lac-based products.
Specification
Major VarietiesBleached shellac, Wax-free bleached shellac
Physical Attributes- Bleached shellac: off-white to tan, amorphous granular resin
- Wax-free bleached shellac: light yellow, amorphous, granular resin
Compositional Metrics- Solubility: insoluble in water; freely (though very slowly) soluble in ethanol; slightly soluble in acetone and ether
- Acid value: between 60 and 89 (JECFA specification test parameter)
- Loss on drying: not more than 6% (JECFA specification)
- Wax: wax-free bleached shellac not more than 0.2% (JECFA specification; aligned with EU specification updates)
- Lead: not more than 2 mg/kg (JECFA specification)
Grades- JECFA specification for Shellac, bleached (INS 904)
- EU food additive specification for E 904 Shellac under Regulation (EU) No 231/2012 (as amended)
ProcessingFunctional uses: coating agent, glazing agent, surface-finishing agentRosin adulteration is explicitly tested for in the JECFA specification (authenticity/quality control focus)
Supply Chain
Value Chain- Lac cultivation/harvest (raw lac) -> primary cleaning/processing -> dissolution in aqueous sodium carbonate -> bleaching (sodium hypochlorite) -> precipitation (dilute sulfuric acid) -> drying -> (optional) wax removal by filtration -> granulation/flaking -> export distribution to food/coating users
Demand Drivers- Codex-recognized glazing agent applications at GMP levels in categories such as surface-treated produce, confectionery/chocolate products, ready-to-eat savouries, and food supplements
- Use as a protective/glazing coating in specialized tablet/coated-tablet food formats in the EU (foods for special medical purposes)
Risks
Regulatory Compliance HighBleached shellac’s market access is tightly linked to additive specifications and evolving regulatory scrutiny around production method distinctions and impurity/toxic element controls. In the EU, shellac (E 904) specifications and authorized uses are actively maintained and were amended in 2026, reflecting ongoing compliance attention that can trigger reformulation, re-qualification, or shipment holds if specifications/testing expectations change.Contract to an explicit specification set (e.g., JECFA and the destination-market legal specs), implement routine COA-based compliance testing (wax, metals, identity/adulteration screens), and maintain change-control on bleaching/decolouring process routes.
Quality Adulteration MediumShellac is vulnerable to quality variability and intentional adulteration risk in trade; JECFA includes an explicit rosin test and multiple purity limits, signaling the need for authenticity controls. Buyers relying on glazing performance and compliance parameters can face rejects if identity/purity deviates.Use approved suppliers with validated JECFA/EU-aligned methods, require batch COAs, and perform periodic third-party verification including rosin/adulterant screening.
Supply Concentration MediumCommercial production and processing capacity is regionally concentrated (notably India and Thailand), and the upstream biological production system depends on lac insect cultivation and host plant availability. Climate anomalies, pest/disease pressure on host plants, or disruptions in regional processing capacity can tighten availability and raise lead times for qualified food-grade material.Maintain multi-origin qualification where feasible, qualify more than one processor/refiner, and carry safety stock for critical glazing applications.
Sustainability- Chemical bleaching inputs and wastewater management considerations (e.g., sodium hypochlorite use and acid precipitation in bleached shellac production)
- Supply dependence on insect cultivation systems and host-plant availability (biological production system sensitivity)
Labor & Social- Market-access and consumer-acceptance sensitivity due to insect-derived origin (labeling/claims alignment for vegetarian/vegan positioning)
FAQ
What is bleached shellac used for in foods?Bleached shellac (INS 904; EU E904) is used primarily as a glazing/coating agent applied to the outside of certain foods. Codex GSFA provisions list uses at GMP levels across categories such as surface-treated produce and confectionery, and EU rules also authorize shellac as a glazing agent for specific tablet/coated-tablet food formats for special medical purposes.
How is bleached shellac produced (in general terms)?FAO/JECFA specifications describe bleached shellac as being made by dissolving lac in aqueous sodium carbonate, bleaching with sodium hypochlorite, precipitating with a dilute sulfuric acid solution, and drying. Wax-free bleached shellac involves an additional step where wax is removed by filtration.
What key specification checks are commonly referenced for bleached shellac in trade?FAO/JECFA specifications include defined identity and purity parameters such as solubility behavior, acid value range, loss on drying limits, wax limits (including a tight limit for wax-free bleached shellac), and a lead maximum level, along with an explicit test intended to detect rosin adulteration.